This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:D2487-171 INTERNATIONAL Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)1 This standard is issued under the fixed designation D2487:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (s)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies of the U.S.Department of Defense. s NOTE-Footnote L in Table 1 was editorially corrected in April 2020. 1.Scope* is the Airfield Classification System developed by A.Casa- 1.I This practice describes a system for classifying mineral grande in the early 1940s.2 It became known as the Unified and organo-mineral soils for engineering purposes based on Soil Classification System when several U.S.Government laboratory determination of particle-size characteristics liquid Agencies adopted a modified version of the Airfield System in limit and plasticity index and shall be used when precise 1952. classification is required. 1.6 This standard does not purport to address all of the safety concerns if any associated with its use.It is the NoTE 1-Use of this standard will result in a single classification group symbol and group name except when a soil contains 5 to 12 fines or responsibility of the user of this standard to establish appro- when the plot of the liquid limit and plasticity index values falls into the priate safety health and environmental practices and deter- crosshatched area of the plasticity chart.In these...

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:C131/C131M-20 INTERNATIONAL Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine This standard is issued under the fixed designation C131/C131M:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies of the U.S.Department of Defense. 1.Scope* 2.Referenced Documents 1.I This test method covers a procedure for testing of coarse 2.1 ASTM Standards:2 aggregates with a maximum size smaller than 37.5 mm ([12 A6/A6M Specification for General Requirements for Rolled in.]for resistance to degradation using the Los Angeles testing Structural Steel Bars Plates Shapes and Sheet Piling machine (Note 1). C125 Terminology Relating to Concrete and Concrete Ag- gregates NoTE 1-A procedure for testing coarse aggregate larger than 19.0 mm C136 Test Method for Sieve Analysis of Fine and Coarse [4 in.is covered in Test Method C535.Thus coarse aggregates with a maximum size between 19 mm [4 in.and 37.5 mm [1/2 in.may be Aggregates tested by Test Method C535 or Test Method C131/C131M. C535 Test Method for Resistance to Degradation of Large- Size Coarse Aggregate by Abrasion and Impact in the Los 1.2 The values stated in either SI units or inch-pound units Angeles Machine are to be regarded separately as standard.The values stated in C670 Practice for Preparing Precision and Bias Statements each syst...

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:B108/B108M-19 INTERNATIONAL Standard Specification for Aluminum-Alloy Permanent Mold Castings1 This standard is issued under the fixed designation B108/B108M;the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies of the U.S.Department of Defense. 1.Scope* 2.Referenced Documents 1.1 This specification2 covers aluminum-alloy permanent 2.1 The following documents of the issue in effect on the mold castings designated as shown in Table 1. date of casting purchase form a part of this specification to the 1.2 This specification is for aluminum-alloy permanent extent referenced herein: mold castings used in general purpose applications.It may not 2.2 ASTM Standards:3 address the mechanical properties integrity testing and veri- B179 Specification for Aluminum Alloys in Ingot and Mol- fication required for highly loaded or safety critical applica- ten Forms for Castings from All Casting Processes tions. B275 Practice for Codification of Certain Zinc Tin and Lead 1.3 Alloy and temper designations are in accordance with Die Castings ANSI H35.1/H35.1(M). B557 Test Methods for Tension Testing Wrought and Cast Aluminum-and Magnesium-Alloy Products 1.4 Unless the order specifies the“M"specification B557M Test Methods for Tension Testing Wrought and Cast designation the material shall be furnished to the inch-pound Aluminum-and Magnesium-Alloy Products (Metric) units....

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:A802-19 INTERNATIONAL Standard Practice for Steel Castings Surface Acceptance Standards Visual Examination This standard is issued under the fixed designation A802;the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S.Department of Defense. 1.Scope* 2.Terminology 1.1 This practice covers the acceptance criteria for the 2.1 Definitions of Terms Specific to This Standard: surface inspection of steel castings by visual examination.Four levels of acceptance standards are provided. Expansion Discontinuities 2.1.1 rat tails n-long narrow linear depressions or small 1.2 Acceptance levels utilize Steel Castings Research and steps occurring on a casting surface.Rat tails form as a result Trade Association (SCRATA)2 graded reference parators of sand expansion and minor buckling of the mold surface for the visual determination of surface texture surface during filling of the mold with liquid metal. roughness and surface discontinuities described as follows: Acceptance levels 2.1.2 scab n-a raised rough area on a casting that usually A-Surface Texture consists of a crust of metal covering a layer of sand. B-Nonmetallic Inclusions Sometimes a scab consists of a raised rough area of essen- C-Gas Porosity tially solid metal on the surface of a casting. D-Solidification Discontinuities 2.1.3 veins n-raised narrow linear ridges that form upon E-Sand Expans...

Designation:A563-15 INTERNATIONAL Standard Specification for Carbon and Alloy Steel Nuts1 This standard is issued under the fixed designation A563;the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies of the U.S.Department of Defense. 1.Scope* High Temperature Service or Both 1.1 This specification2 covers chemical and mechanical A242/A242M Specification for High-Strength Low-Alloy requirements for eight grades of carbon and alloy steel nuts for Structural Steel general structural and mechanical uses on bolts studs.and A307 Specification for Carbon Steel Bolts Studs and other externally threaded parts. Threaded Rod 60 000 PSI Tensile Strength A325 Specification for Structural Bolts Steel Heat Treated NoTE I-See Appendix XI for guidance on suitable application of nut 120/105 ksi Minimum Tensile Strength grades. A354 Specification for Quenched and Tempered Alloy Steel 1.2 The requirements for any grade of nut may at the Bolts Studs and Other Externally Threaded Fasteners supplier's option and with notice to the purchaser be fulfilled A394 Specification for Steel Transmission Tower Bolts by furnishing nuts of one of the stronger grades specified Zinc-Coated and Bare herein unless such substitution is barred in the inquiry and A449 Specification for Hex Cap Screws Bolts and Studs purchase order. Steel Heat Treated 120/105/90 ksi Minimum Tensile 1.3 Grades C3 and DH3 nuts have atmospheric corrosion Strength General Use resistance and weathering characteristics parable to that of A490 Specification for Structural Bolts Alloy Steel Heat the steels covered in Specifications A242/A242M A588/ Treated 150 ksi Minimum Tensile Strength A588M and A709/A709M.The atmospheric corrosion ...

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:A563/A563M-21a INTERNATIONAL Standard Specification for Carbon and Alloy Steel Nuts (Inch and Metric)1 This standard is issued under the fixed designation A563/A563M;the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (s)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies of the U.S.Department of Defense. NOTE-Corrections were made to Table 1 and throughout the standard.The year date was changed on July 26 2021 1.Scope* 2.Referenced Documents 1.1 This specification2 covers chemical and mechanical 2.1 ASTM Standards:3 requirements for eleven grades of carbon and alloy steel nuts A194/A194M Specification for Carbon Steel Alloy Steel for general structural and mechanical uses on bolts studs and and Stainless Steel Nuts for Bolts for High Pressure or other externally threaded parts. High Temperature Service or Both A307 Specification for Carbon Steel Bolts Studs and NoTE 1-See Appendix XI for guidance on suitable application of nut grades. Threaded Rod 60 000 PSI Tensile Strength A354 Specification for Quenched and Tempered Alloy Steel 1.2 The requirements for any grade of nut may at the Bolts Studs and Other Externally Threaded Fasteners supplier's option and with notice to the purchaser be fulfilled A394 Specification for Steel Transmission Tower Bolts by furnishing nuts of one of the stronger grades specified Zinc-Coated and Bare herein unless such substitution is barred in the inquiry and A449 Specific...

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:A488/A488M-182 INTERNATIONAL Standard Practice for Steel Castings Welding Qualifications of Procedures and Personnel1 This standard is issued under the fixed designation A488/A488M:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the U.S.Department of Defense. e'NOTE-Grade designations in Table I and Table X1.I were corrected editorially in January 2020. 2 NOTE-Grade designation HGIOMNN in Table I was corrected editorially in February 2020. 1.Scope* 1.5 This standard does not purport to address all of the 1.1 This practice covers the qualification of procedures safety concerns if any associated with its use.It is the welders and operators for the fabrication and repair of steel responsibility of the user of this standard to establish appro- castings by electric arc welding. priate safety health and environmental practices and deter- 1.1.1 Qualifications of a procedure and either or both the mine the applicability of regulatory limitations prior to use. operator or welder under Section IX of the ASME Boiler and 1.6 This international standard was developed in accor- Pressure Vessel Code shall automatically qualify the procedure dance with internationally recognized principles on standard- and either or both the operator or welder under this practice. ization established in the Decision on Principles for the P-number designations in the ASME gro...

ANSI Z49.1:2012 An American National Standard Safety in Welding Cutting and Allied Processes American Welding Society ANSI Z49.1:2012 An American National Standard Approved by the American National Standards Institute March 9 2012 Safety in Welding Cutting and Allied Processes Supersedes ANSI Z49.1:2005 Prepared by the Accredited Standards Committee Z49 Safety in Welding and Cutting Secretariat American Welding Society Abstract This standard covers all aspects of safety and health in the welding environment emphasizing oxygen gas and arc welding processes with some coverage given to resistance welding.It contains information on protection of personnel and the general area ventilation fire prevention and protection and confined spaces.A significant section is devoted to precautionary information showing examples and an extensive bibliography is included. W American Welding Society 550 N.W.LeJeune Road Miami FL 33126 ANSI Z49.1:2012 American National Standard Approval of an American National Standard requires review by ANSI that the requirements for due process consensus and other criteria for approval have been met by the standards developer. Consensus is established when in the judgment of the ANSI Board of Standards Review substantial agreement has been reached by directly and materially affected interests.Substantial agreement means much more than a simple majority but not necessarily unanimity.Consensus requires that all views and objections be considered and that a concerted effort be made toward their resolution. The use of American National Standards is pletely voluntary;their existence does not in any respect preclude any- one whether he has approved the standards or not from manufacturing marketing purchasing or using products processes or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpreta- tion of any American National Standard.Moreover no p...

ANSI Z49.1:2021 An American National Standard Safety in Welding Cutting and Allied Processes AWS American Welding Society ANSI Z49.1:2021 An American National Standard Approved by the American National Standards Institute July2 2021 Safety in Welding Cutting and Allied Processes Revises ANSI Z49.1:2012 Prepared by the Accredited Standards Committee Z49 Safety in Welding and Cutting Secretariat American Welding Society Abstract This standard covers all aspects of safety and health in the welding environment emphasizing oxygen gas and arc weld- ing processes with some coverage given to resistance and high energy beam welding brazing and soldering.It contains information on protection of personnel and the general area ventilation fire prevention and protection and confined spaces.A significant section is devoted to precautionary information showing examples and an extensive bibliography is included. AWS American Welding Society ANSI Z49.1:2021 American National Standard Approval of an American National Standard requires review by ANSI that the requirements for due process consensus and other criteria for approval have been met by the standards developer. Consensus is established when in the judgment of the ANSI Board of Standards Review substantial agreement has been reached by directly and materially affected interests.Substantial agreement means much more than a simple majority but not necessarily unanimity.Consensus requires that all views and objections be considered and that a concerted effort be made toward their resolution. The use of American National Standards is pletely voluntary;their existence does not in any respect preclude anyone whether he has approved the standards or not from manufacturing marketing purchasing or using products processes or procedures not conforming to the standards. The American National Standards Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard.Moreo...

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Standard Method of Test for Determining the Liquid Limit of Soils AASHTO Designation:T 89-13(2021) Technically Revised:2013 Reviewed but Not Updated:2021 Editorially Revised:2021 Technical Submittee:1a Soil and Unbound Recycled Materials AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington DC 20004 Standard Method of Test for Determining the Liquid Limit of Soils AASHTO Designation:T 89-13(2021) AASHIO Technically Revised:2013 Reviewed but Not Updated:2021 Editorially Revised:2021 Technical Submittee:1a Soil and Unbound Recycled Materials 1. SCOPE 1.1. The liquid limit of a soil is that water content as determined in accordance with the following procedure at which the soil passes from a plastic to a liquid state. 1.2. The following applies to all specified limits in this standard:For the purposes of determining conformance with these specifications an observed value or a calculated value shall be rounded off“to the nearest unit'"in the last right-hand place of figures used in expressing the limiting value in accordance with ASTM E29. 1.3. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of the equipment used.Agencies that meet the criteria of R 18 are generally considered capable of petent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that pliance with R 18 alone does not pletely assure reliable results.Reliable results depend on many factors;following the suggestions of R 18 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M231 Weighing Devices Used in the Testing of Materials ◆ R 18 Establishing and Implementing a Quality Management System for Construction Materials Testing Laboratories ■ R 58 Dry Preparation of Disturbed Soi...

Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate AASHTO Designation:T 85-211 Technically Revised:2021 Editorially Revised:2021 Technical Submittee:1c Aggregates ASTM Designation:C127-12 AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington D.C.20004 Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate AASHTO Designation:T 85-211 AASHIO Technically Revised:2021 Editorially Revised:2021 Technical Submittee:1c Aggregates ASTM Designation:C127-12 1. SCOPE 1.1. This method covers the determination of specific gravity and absorption of coarse aggregate. The specific gravity may be expressed as bulk specific gravity bulk specific gravity (saturated surface-dry (SSD)) or apparent specific gravity.The bulk specific gravity (SSD)and absorption are based on aggregate after 15-19 h of soaking in water.This method is not intended to be used with lightweight aggregates. 1.2. The values stated in SI units are to be regarded as the standard. 1.3. This standard may involve hazardous materials operations and equipment.This standard does not purport to address all of the safety concerns associated with its use.It is the responsibility of the user of this procedure to consult and establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to its use. 1.4. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of the equipment used.Agencies that meet the criteria of R 18 are generally considered capable of petent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that pliance with R 18 alone does not pletely assure reliable results.Reliable results depend on many factors;following the suggestions of R 18 or some similar acceptable guideline provides a...

Standard Method of Test for Specific Gravity and Absorption of Fine Aggregate AASHTO Designation:T 84-13(2021)1 Technically Revised:2013 Reviewed but Not Updated:2021 Technical Submittee:1c Aggregates ASTM Designation:C128-12 AASHO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington D.C.20004 Standard Method of Test for Specific Gravity and Absorption of Fine Aggregate AASHTO Designation:T 84-13(2021)1 AASHIO Technically Revised:2013 Reviewed but Not Updated:2021 Technical Submittee:1c Aggregates ASTM Designation:C128-12 1. SCOPE 1.1. This method covers the determination of bulk and apparent specific gravity 23/23C (73.4/73.4F) and absorption of fine aggregate. 1.2. This method determines (after 15-19 h of soaking in water)the bulk specific gravity and the apparent specific gravity the bulk specific gravity on the basis of mass of saturated surface-dry (SSD)aggregate and the absorption. 1.3. The values stated in SI units are to be regarded as the standard. 1.4. This standard may involve hazardous materials operations and equipment.This standard does not purport to address all of the safety concerns associated with its use.It is the responsibility of the user of this procedure to consult and establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to its use. 1.5. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of the equipment used.Agencies that meet the criteria of R 18 are generally considered capable of petent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that pliance with R 18 alone does not pletely assure reliable results.Reliable results depend on many factors;following the suggestions of R 18 or some similar acceptable guideline provides a means of evaluating and control...

Standard Method of Test for Analysis of Structural Steel Coatings for Isocyanate Content AASHTO Designation:T 339-10(2019)1 Technical Submittee:4c Markings and Coatings Release:Group 2(June) AASHIO American Association of State Highway and Transportation Officials 444 North Capitol Street N.W. Suite 249 Washington D.C.20001 Standard Method of Test for Analysis of Structural Steel Coatings for Isocyanate Content AASHTO Designation:T 339-10(2019)1 AASHO Technical Submittee:4c Markings and Coatings Release:Group 2(June) 1. SCOPE 1.1. This method is designed for the determination of the isocyanate (NCO)content of the resin system found in polyurethane paints. 1.2. The values stated in SI units are to be regarded as the standard. 1.3. This standard does not purport to address all of the safety concerns associated with its use.It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 2. APPARATUS AND MATERIALS 2.1. Analytical balance. 2.2. High-speed centrifuge. 2.3. Centrifuge tubes minimum 50-mL heavy-wall glass with vinyl-lined screw caps or 50-mL high- speed [9400 relative centrifugal force (RCF)]polypropylene tubes with screw caps. 2.4. 10-mL syringes with Luer slip tip and caps. 2.5. Automatic titrator with stirrer (Mettler-Toledo DL 50 or equivalent). 2.6. pH electrodes. 2.7. Fleaker or other vessel with stopper or cap 200-mL minimum volume. 2.8. o-xylene reagent grade dried over 3A molecular sieve (see Section 4.1). 2.9. Standard buffer solutions pH 4.00 and pH 7.00. 2.10. Dibutylamine 99 percent assay. 2.11. Methanol ACS reagent grade dried over 3A molecular sieve (see Section 4.1). 2.12. Hydrochloric acid solution 1.0 N. TS-4c T339-1 AASHTO 2019 by the American Association of State Highway and Transportation Officials. All rights reserved.Duplication is a violation of applicable law. 3. PROCEDURE 3.1. To analyze a one-pone...

Standard Method of Test for Effect of Heat and Air on a Moving Film of Asphalt Binder (Rolling Thin-Film Oven Test) AASHTO Designation:T 240-211 Technically Revised:2021 Editorially Revised:2021 Technical Submittee:2b Liquid Asphalt ASTM Designation:D2872-04 AASHO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington D.C.20004 Standard Method of Test for Effect of Heat and Air on a Moving Film of Asphalt Binder (Rolling Thin-Film Oven Test) AASHTO Designation:T 240-211 AASHIO Technically Revised:2021 Editorially Revised:2021 Technical Submittee:2b Liquid Asphalt ASTM Designation:D2872-04 1. SCOPE 1.1. This test is used to measure the effect of heat and air on a moving film of asphalt binder and to provide residue for additional testing.The effects of this treatment are determined from measurements of the properties of the asphalt binder before and after the test. 1.2. The values stated in SI units are to be regarded as the standard. 1.3. This standard may involve hazardous materials operations and equipment.This standard does not purport to address all of the safety concerns associated with its use.It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.4. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of the equipment used.Agencies that meet the criteria of R 18 are generally considered capable of petent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that pliance with R 18 alone does not pletely assure reliable results.Reliable results depend on many factors;following the suggestions of R 18 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors. 2. REFERENCED DOCU...

Standard Method of Test for The California Bearing Ratio AASHTO Designation:T 193-13(2021) Technically Revised:2013 Reviewed but Not Updated:2021 Editorially Revised:2021 Technical Submittee:1a Soil and Unbound Recycled Materials AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington DC 20004 Standard Method of Test for The California Bearing Ratio AASHTO Designation:T 193-13(2021) AASHIO Technically Revised:2013 Reviewed but Not Updated:2021 Editorially Revised:2021 Technical Submittee:1a Soil and Unbound Recycled Materials 1. SCOPE 1.1. This test method covers the determination of the California Bearing Ratio (CBR)of pavement subgrade subbase and base/course materials from laboratory pacted specimens.The test method is primarily intended for but not limited to evaluating the strength of cohesive materials having maximum particle sizes less than 19 mm (/4 in.). 1.2. When materials having maximum particle sizes greater than 19 mm (/4 in.)are to be tested this test method provides for modifying the gradation of the material so that the material used for tests all passes the 19.0-mm (3/4-in.)sieve while the total gravel 4.75-mm (No.4)to 75-mm(3-in.) fraction remains the same.While traditionally this method of specimen preparation has been used to avoid the error inherent in testing materials containing large particles in the CBR test apparatus the modified material may have significantly different strength properties than the original material.However a large experience base has developed using this test method for materials for which the gradation has been modified and satisfactory design methods are in use based on the results of tests using this procedure. 1.3. Past practice has shown that CBR results for those materials having substantial percentages of particles retained on the 4.75-mm (No.4)sieve are more variable than for finer materials. Consequently more trials may be required for these mat...

Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb)Rammer and a 457-mm (18-in.)Drop AASHTO Designation:T 180-21 Technically Revised:2021 Technical Submittee:1b Geotechnical Exploration Instrumentation Stabilization and Field Testing AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington D.C.20004 Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb)Rammer and a 457-mm (18-in.)Drop AASHTO Designation:T 180-21 AASHIO Technically Revised:2021 Technical Submittee:1b Geotechnical Exploration Instrumentation Stabilization and Field Testing 1. SCOPE 1.1. This method of test is intended for determining the relationship between the moisture content and density of soils when pacted in a given mold of a given size with a 4.54-kg (10-1b)rammer dropped from a height of 457 mm (18 in.).Four alternate procedures are provided as follows: ■Method A-A101.60-mm(4-in.)mold:Soil material passing a4.75-mm(No.4)sieve(see Sections 4 and 5); ■Method B-A152.40-mm(6-in.)mold:Soil material passing a4.75-mm(No.4)sieve(see Sections 6 and 7); ■Method C-A101.60-mm(4-in.)mold:Soil material passing a19.0-mm(0.75-in.)sieve(see Sections 8 and 9);or ■ Method D-A 152.40-mm (6-in.)mold:Soil material passing a 19.0-mm (0.75-in.)sieve(see Sections 10 and 11). 1.2. The method to be used should be indicated in the specifications for the material being tested.If no method is specified the provisions of Method A shall govern. 1.3. This test method applies to soil mixtures that have 40 percent or less retained on the 4.75-mm (No.4)sieve when Method A or B is used and 30 percent or less retained on the 19.0-mm (0.75-in.)sieve when Method C or D is used.Material retained on these sieves shall be defined as oversize particles (coarse particles). 1.4. If the test specimen contains oversized particles dry density and moisture corrections must be made in accordance with Annex A1...

Standard Method of Test for Bulk Specific Gravity (Gmb)of Compacted Asphalt Mixtures Using Saturated Surface-Dry Specimens AASHTO Designation:T 166-21 Technically Revised:2021 Editorially Revised:2021 Technical Submittee:2c Asphalt-Aggregate Mixtures AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington D.C.20004 Standard Method of Test for Bulk Specific Gravity (Gmb)of Compacted Asphalt Mixtures Using Saturated Surface-Dry Specimens AASHTO Designation:T 166-21 AASHIO Technically Revised:2021 Editorially Revised:2021 Technical Submittee:2c Asphalt-Aggregate Mixtures 1. SCOPE 1.1. This method of test covers the determination of bulk specific gravity (Gmb)of specimens of pacted asphalt mixtures. 1.2. This method should not be used with specimens that contain open or interconnecting voids or absorb more than 2.0 percent of water by volume as determined in Sections 7.2 or 10.2 herein.If the specimen contains open or interconnecting voids or absorbs more than 2.0 percent of water by volume then T 275 or T 331 should be used. 1.3. The bulk specific gravity (Gm)of the pacted asphalt mixture may be used in calculating the unit mass of the mixture. Note 1-The values for bulk specific gravity (Gm)obtained from T 275 or T 331 may differ. Care should be exercised when paring test results from T 275 and T 331. 1.4. The values stated in SI units are to be regarded as the standard. 1.5. This standard may involve hazardous materials operations and equipment.This standard does not purport to address all the safety concerns if any associated with its use.It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.6. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of ...

Standard Method of Test for Clay Lumps and Friable Particles in Aggregate AASHTO Designation:T 112-21 Technically Revised:2021 Editorially Revised:2021 Technical Submittee:1c Aggregates AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington D.C.20004 Standard Method of Test for Clay Lumps and Friable Particles in Aggregate AASHTO Designation:T 112-21 AASHIO Technically Revised:2021 Editorially Revised:2021 Technical Submittee:1c Aggregates 1. SCOPE 1.1. This method covers the approximate determination of clay lumps and friable particles in aggregates.This method is intended for evaluating aggregates that are nominally smaller than 2 in. Note 1-It is intended that this procedure will be conducted concurrently with T27 when results from both procedures are desired.If that option is elected additional sieves to those required in Section 6.3 will need to be incorporated;however all of the material passing the 4.75 mm (No.4) sieve at the pletion of initial sieving and separation will be rebined prior to continuation of this procedure. 1.2. This standard may involve hazardous materials operations and equipment.This standard does not purport to address all of the safety concerns associated with its use.It is the responsibility of the user of this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to its use. 1.3. The quality of the results produced by this standard are dependent on the petence of the personnel performing the procedure and the capability calibration and maintenance of the equipment used.Agencies that meet the criteria of R 18 are generally considered capable of petent and objective testing/sampling/inspection/etc.Users of this standard are cautioned that pliance with R 18 alone does not pletely assure reliable results.Reliable results depend on many factors;following the suggestions of R 1...

Standard Method of Test for Compressive Strength of Hydraulic Cement Mortar (Using 50-mm or 2-in.Cube Specimens) AASHTO Designation:T 106M/T 106-21 Technically Revised:2021 Editorially Revised:2021 Technical Submittee:3a Hydraulic Cement and Lime ASTM Designation:C109/C109M-21 AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington DC 20004 Standard Method of Test for Compressive Strength of Hydraulic Cement Mortar (Using 50-mm or 2-in.Cube Specimens) AASHTO Designation:T 106M/T 106-21 AASHIO Technically Revised:2021 Editorially Revised:2021 Technical Submittee:3a Hydraulic Cement and Lime ASTM Designation:C109/C109M-21 1. SCOPE 1.1. This test method covers determination of the pressive strength of hydraulic cement mortar using 50-mm [or 2-in.cube specimens (see Note 1). Note 1-ASTM C349 provides an alternative procedure for this determination (not to be used for acceptance tests). 1.2. This test method covers the application of the test using either inch-pound or SI units.The values stated in either SI units or inch-pound units are to be regarded separately as standard.Within the text the inch-pound units are shown in brackets.The values stated in each system may not be exact equivalents;therefore each system shall be used independently of the other.Combining values from the two systems may result in nonconformance with the standard. 1.3. Values in SI units shall be obtained by measurement in SI units or by appropriate conversion using the Rules for Conversion and Rebounding given in Standard IEEE/ASTM SI 10 of measurements made in other units. 1.4. This standard does not purport to address all of the safety concerns if any associated with its use.It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Warning-Fresh hydraulic cementitious mixtures are caustic and may cause che...